#include <stdio.h>

int main() 
{
    char a = 0;
    while (scanf("%c",&a) != EOF)
    {
        if (a == 'A' || a == 'a' || a == 'E' || a == 'e' || a == 'O' || a == 'o' || a == 'I' || a == 'i' ||  a == 'U' || a == 'u')
            printf("Vowel\n");
        else
            printf("Consonant\n");
        getchar();//吸收掉\n,避免\n作为字符被计入a
    }
    return 0;
}